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United States Patent | 5,595,599 |
Yokota ,   et al. | January 21, 1997 |
A method of sintering cement clinker is provided including the steps of introducing raw material for cement to a spouted fluidized bed granulating furnace which includes a perforated distributor having a plurality of nozzle holes; passing fluidizing gas through at least one of the plurality of nozzle holes into the spouted fluidized bed granulating furnace while simultaneously blowing classifying gas at a selected flow velocity that is different from the flow velocity of the fluidizing gas into the spouted fluidized bed granulating furnace through a dropping port arranged facing and between the fluidized bed of the spouted fluidized bed granulating furnace and in communication with a fluidized bed sintering furnace; granulating the raw material in the spouted fluidized bed granulating furnace; discharging granules formed in the spouted fluidized bed granulating furnace into the fluidized bed sintering furnace while classifying the granules with the classifying gas; and sintering the granules injected into the fluidized bed sintering furnace through the dropping port.
Inventors: | Yokota; Norio (Narashino, JP); Sato; Nichitaka (Funabashi, JP); Mukai; Katsuji (Nagareyama, JP); Ishinohachi; Toshiyuki (Tochigi-ken, JP); Hashimoto; Isao (Akashi, JP); Murao; Mikio (Kobe, JP); Kanamori; Shozo (Miki, JP); Kumagai; Chikanori (Kobe, JP) |
Assignee: | Kawasaki Jukogyo Kabushiki Kaisha (Kobe, JP); Sumitomo Cement Co., Ltd. (Tokyo, JP) |
Appl. No.: | 476256 |
Filed: | June 7, 1995 |
Feb 26, 1993[JP] | 5-063138 | |
Mar 31, 1993[JP] | 5-073890 | |
Mar 31, 1993[JP] | 5-073909 | |
Mar 31, 1993[JP] | 5-098485 |
Current U.S. Class: | 106/744; 106/757 |
Intern'l Class: | C04B 007/45 |
Field of Search: | 106/739,744,757 432/58 |
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4759711 | Jul., 1988 | Ichiyanagi et al. | 432/106. |
4877397 | Oct., 1989 | Tatebayashi et al. | 432/106. |
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